Early marriage is a phenomenon that has an impact on various aspects of life which then affects human development. This study aims to conduct a literature review on the implications of early marriage on human development. The method used in this study is the SLR (Systematic Literature Review) method. Data collection was carried out by documenting all literature that met the research inclusion requirements. The literature obtained as many as 25 articles from the Google Scholer database with the help of Harzing's Publish or Perish application. From this literature study, it was found that the phenomenon of early marriage has implications for the human development index based on health indicators and life expectancy, education, and welfare. Another finding is that women are the most disadvantaged from the impact of early marriage. Things that can be done to deal with the phenomenon and impact of early marriage include formal and non-formal education, strengthening access to health and education services, creating empowerment programs, and strengthening regulations and legal protection.